Door-controlling mechanism.



H. G. VOIGHT & N. B. HURD. DOOR CONTROLLING MECHANISM. APPLICATION FILED311N522, 1910.

958,447. rammed May 17, 1910.

H. G. VOIGHT & NJB. HURD.

DOOR CONTROLLING MECHANISM.

APPLICATION FILED JAN.22,1910.

Patented May 17, 1910.

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HENRY G. VOIGI-IT AND NORMAN B. HURD, OF NEW BRITAIN, CONNECTICUT,ASSIGN- ORS TO RUSSELL 8c ERWIN MANUFACTURING COMPANY, OF NEl/V BRITAIN,CON- NECTICUT, A CORPORATION OF CONNECTICUT.

DOOR-CONTROLLING- MECHANISM.

Specification of Letters Patent.

Patented llIay 17, 1910.

Application filed January 22, 1910. Serial No. 539,576.

To all whom it may concern:

Be it known that we, HENRY G. VOIGHT and NORMAN B. HURD, citizens of theUnited States, residing at New Britain, county of Hartford, State ofConnecticut, have invented certain new and useful Improvements inDoor-Controlling Mechanism, of which the following is a full, clear, andexact description.

Our invention relates to improvements in door holders, the same being ofparticular utility when combined with a door closing mechanism, thepreferable form of our invention being shown in the accompanyingdrawings, in which- Figure 1 is a plan view showing our invention asemployed with a door closer. Fig. 2 is a side elevation partly insection. Figs. 3, a, 5, 6 and 7 illustrate like details in differentpositions. Fig. 8 is a View of the under side of the arm shown in Fig. 1with parts of our invention applied thereto. Figs. 9, 10 and 11 aredetail views.

1 represents the main body or case of a door closer of any suitableconstruction.

2 is the door closer arm.

34567 are stop members designed to cooperate with other parts of thestop mechanism hereinafter described to hold the door closure arm 2 andthereby the door in an open position.

It'may be assumed that the door. closure arm 2 is in approximately thatposition in Fig. l in which it would appear when the door is closed. Ifthe arm 2 is swung on its axis 2 clockwise, as by the opening of thedoor, it is the intention that said arm shall be stopped atapproximately the position in dicated by the stop members 845. If thearm 2 is swung counter clockwise, it is the intention that the stops 765shall 00- operate with said arm to hold it in a position in which thedoor will stand ajar to the desired degree, depending upon the stopencountered.

That part of the stop mechanism designed to cooperate with the stopshoulders 3 to 7 inclusive, and to which we have previously referred, iscarried by the arm 2 and-comprises a pendulum or stop-engaging member 8,the same being yieldingly carried by the arm 2 as by a spring pressedtilting lever, pivoted at 10, to the arm 2.

11 is a spring carried by the arm 2 and engaging the lever 9 to hold thelever normally in such a position as to cause the pendulum 8 to properlyengage with one of the stops 3 to 7 inclusive to hold the arm 2 in theopen position. The distance from the pivotal center of the pendulum 8 tothe stop member on each of the stops 8 to 7 is such that when the end ofsaid pendulum engages one of said stop members, said pendulum willincline downwardly and forwardly at an angle, thereby blocking theadvance of the arm 2.

To illustrate, in Fig. 3 we have shown the normal inactive position ofthe pendulum 8. If the arm' 2 is moved to the right, the end of thependulum will be dragged over the stop 7 (Fig. 3) until it assumes theposition shown in Fig. at, in which position the lower end of thependulum rests against the stop shoulder 7 of the stop 7. In thisposition it will be seen that the tendency of the closer to swing thearm 2 back to its normal position will be resisted. When it is desiredto release the door to permit it to close, the door may be opened sothat the arm 2 will be moved still farther to the right (relatively tothe position shown in Fig. 4) until the pendulum 8 entirely clears thestop 7, whereupon it will be droped to the position shown in Fig. 3, sothat as the arm 2 moves back to the normal position the pendulum 8 willfreely swing and ride over the stop 7, as indicated in Fig. 5. If anyone unfamiliar with the stop mechanism should attempt to close the doorwith the pendulum 8 in the position shown in Fig. 4, this could be donewithout danger of breakage to any of the parts since it will beremembered the pendulum 8 is carried on the end of the tilt ing lever 9hence when pressure is applied in a direction to close the doorsufficiently to overcome the action of spring 11, the lever 9 will tiltso that the pendulum will be elevated bodily on the stop 7 (see Fig. 6)until it passes the stop 7 to permit the arm 2 to be restored to itsnormal position. It will thus be seen that there is no danger whateverof breakage of any of the parts by reason of the operation of themechanism by those unfamiliar with its construction.

It will be seen that this type of door stop possesses many advantagesover the ordinary spring friction stop such as associated with a springclosing device, in that in our present improvement a series of fixedstop abutments may be provided to enable the door to be held open at anyone of many angles, and when released therefrom to freely close. In theordinary spring friction stop, as applied to a door closer, it ispossible to open the door and stop the same at only one point, becauseif a plurality of stop shoulders were employed for separate engagementby the spring friction device, the spring friction device would have tobe manually forced over each one of said abutments successively in theclosing operation, whereas in the present device the pendulous stopengaging member 8 will freely drag over each shoulder (after beingreleased from one) by the action of the closer spring alone.

From the foregoing it will be readily understood that this improvedstop, by reason of its difference in construction and mode of operation,is substantially and materially different from the ordinary springfriction stop, such as applied to spring closers in the past. In thisrespect the operation of the device while the door is closingcorresponds broadly to the operation of the door stop made thesubject-matter of co-pending application Serial No. 528,058, filedNovember 15th, 1909, by H. G. Voight, one of the joint inventors herein.

It will be understood that various stops 3 to 7 are constructed in agenerally similar manner and only modified for right and left handaction, as already indicated, and in the particular form shown, the stop5 is adapted for either action. \Vhile we have shown only five stops inall, obviously the number of said stops may be changed as desired toprovide as many holding shoulders for pendulum engagement as theexigencies of any particular case demand or make desirable.

It will be understood, of course, that we have attempted to show hereinonly the preferred form of the construction and that we anticipate thatmodifications may be made in the various details and arrangement withoutdeparting from the spirit and scope of the invention.

What we claim is:

1. In a door stop mechanism, a stationary part, a movable part, a stopabutment carried by one of said parts, a cooperating stop engagercarried by the other part, said stop engager being pivoted to swing likea pendulum, the pivot of said stop engager being adapted to yield.

2. In a door controlling mechanism, in combination a movable doorclosing member, a relatively fixed member, cooperating stop memberscarried by said parts, one of said stop members being pivotally mountedand arranged to swing, and a yielding support for one of said stopmembers.

3. In a door controlling mechanism, in combination a movable doorclosing member, a relatively fixed member, cooperating stop memberscarried by said parts, one of said stop members being pivotally mountedand arranged to swing, and a yielding and spring pressed support for oneof said stop members.

. 4. In a door controlling mechanism, in combination a movable doorclosing member, a relatively fixed member, cooperating stop memberscarried by said parts, one of said stop members being pivotally mountedand arranged to swing, and a spring pressed tilting lever supportingsaid last mentioned member.

HENRY G. VOIGI-IT. NORMAN B. HURD. \Vitnesses M. S. IVIARD, HARRY E.MILES.

